Young's double-slit experiment using two-center core-level photoemission: Photoelectron scattering effects

X. J. Liu, G. Prümper, F. Gel'mukhanov, N. A. Cherepkov, H. Tanaka, K. Ueda

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)


Core-level photoemission from N2 can be considered as an analogue of Young's double-slit experiment (YDSE) in which the double-slit is replaced by a pair of N 1s orbitals. N 1s photoelectron spectra of N2 are measured in the extended photon energy region up to ∼ 1 keV at unprecedented resolution. The measured ratio between the 1σg and 1σu photoionization cross-sections oscillates as a function of electron momentum due to interference effects analogue to YDSE. We found a shift of the interference pattern with respect to a prediction by a simple model for coherent two-center emission, the Cohen-Fano formula, and attributed it to photoelectron scattering by the neighboring atom. We demonstrate that the shift can be used to determine the scattering phase of the photoelectron.

Original languageEnglish
Pages (from-to)73-77
Number of pages5
JournalJournal of Electron Spectroscopy and Related Phenomena
Publication statusPublished - 2007 May


  • Core-level photoemission
  • Double-slit experiment
  • Interference
  • Nitrogen molecule
  • X-ray photoelectron spectroscopy

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Radiation
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Spectroscopy
  • Physical and Theoretical Chemistry

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